In this paper the current harmonic can be compensated by using the Shunt Active Power Filter, Passive Power Filter and the combination of both. The system has the function of voltage stability, and harmonic suppression. The reference current can be calculated by dq transformation. An improved generalized integrator control was proposed to improve the performance of APF. The simulation results o...

In this paper, global finite-time stabilization via output-feedback is investigated for a class of stochastic nonlinear systems. By introducing a homogeneous observer, we design an output-feedback control law by adding one power integrator technique and homogeneous domination approach. Based on stochastic finite-time stability theorem, it is proved that the closed-loop system is globally finite...

This paper considers the issue of modeling the pivot nonlinearity in a typical hard disk drive, taking into account viscous friction, Coulomb friction and hysteresis effects. It presents a nonlinear compensator design, based on a proposed model, to make the compensated system behave like a double integrator regardless of the magnitude of the input current. It describes extensive experiments, ca...

Chaotic synchronization, as a key technique of chaotic secure communication, has received much attention in recent years. This paper proposes a nonlinear synchronization scheme for the time-delay chaotic system in the presence of noise. In this scheme, an integrator is introduced to suppress the influence of channel noise in the synchronization process. The experimental results demonstrate the ...

We discuss several issues related to the stabilizability of nonlinear systems. For a given continuously stabilizable system, we review some constructions of feedbacks that render the system input-to-state stable with respect to actuator errors. We also announce a new feedback design that makes globally asymptotically controllable systems input-to-state stable to actuator errors and small observ...

The paper presents a computation-oriented method for characterizing and obtaining local control Lyapunov functions induced by particular star-shaped nonconvex sets for continuous-time nonlinear systems with bounded inputs. For a given set, the necessary and sufficient conditions for the induced function to be a nonconvex local control Lyapunov function are provided. The related convex problems ...

For continuous nonlinear systems with multiple state delays, this paper proposes an efficient optimization algorithm for delay and parameter estimation based on a novel implicit Runge-Kutta integrator. As the integrator is in form, integral step not restricted to be less than all delays. To improve computational efficiency, lifting scheme employed integrated programming solver such that number ...